import React from 'react'
import './index.css'
export default function index() {
  return (
    <div className='header-content'>
          <div className='left'>
          <h1>React Router</h1>
          </div>
         
          <div className='right'>
            <span>用户名</span>
            <button>退出</button>
          </div>
    </div>
  )
}
